Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a top view thereof.

The uneven broken lines immediately adjacent to the shaded areas represent unclaimed boundaries of the design. The broken line showing of the two circular elements and a trademark within the claimed region and the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 